The present estimate of the Earth's age is about ________ years.
A) 50 million
B) 500 million
C) 2.8 billion
D) 4.6 billion
E) 2.8 trillion

Question

Quizplus · Accepted Answer

The current estimate for the age of the Earth is 4.6 billion years according to various scientific studies such as radioactive dating of rocks and meteorites. Options A, B, and E are far too low of an estimate for the Earth's age, while option C is closer but still lower than the current estimate.

The Present Estimate of the Earth's Age Is About ________